Tate and the National Galleries of Scotland have parted ways with Anthony d’Offay after the London-based art dealer and collector was accused of sexual harassment and inappropriate behavior, Mark Brown reports in The Guardian. D’Offay denies the allegations, which date from 1997 to 2004 and were made by three women in the art world. He also denies knowledge of a police investigation concerning an allegation of malicious communication.

D’Offay, who is seventy-eight, sold nearly his entire collection of contemporary artvalued at more than $200 millionto both Tate and the National Galleries of Scotland in 2008 for the original price he paid, an act of philanthropy that Tate director Nicholas Serota said resulted in “one of the most generous gifts that has ever been made to museums in this country.” The donated artworks are part of the dealer’s Artist Rooms project, an educational initiative he will no longer be a part of.

“In light of these allegations, Tate and NGS have decided that it is appropriate to suspend any further contact with Mr. D’Offay until these matters have been clarified,” Tate and the National Galleries of Scotland said in a joint statement. “The work of Tate and NGS is underpinned by values of fairness, equality, and respect and the right to work free of sexual harassment. We expect these values to be demonstrated in the behavior of everyone who is involved in our organizations.”